DATE: 06/29/2006 COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION PAGE: 1 TIME: 11:06:11 2005 CONFIDENCE INTERVAL DETAIL REPT: PTS428 156/Martin VRSN: W 156-905/Grady ISD ____________________________________________________________________________________________________________________________________ (1) (1) (1) (1) (1) (2) (3) # STRATUM CATEGORY LOCAL VALUE STRATUM RATIO STATE VALUE SAMPLE SIZE TOTAL PARCELS STRATUM VARIANCE _________ ________ ___________ _____________ ___________ ___________ _____________ ________________ 1 D3 9,627,720 1.0456 9,207,842 29 1,326 .015702996 2 G1 50,143,650 1.0138 49,461,087 15 166 .014770223 3 G1 50,273,360 1.0139 49,584,140 34 49 .004669536 RANDOM TOTALS: 110,044,730 108,253,069 78 1,541 CATG J EXCEPTION VALUES: 4,315,956 4,567,734 CATG D1 EXCEPTION VALUES: 8,664,630 11,707,827 CATG G1 EXCEPTION VALUES: 98,055,425 96,153,822 TOTAL TEST VALUES (4): 221,080,741 220,682,452 MARGIN OF ERROR PERCENT: 5.0000002 MARGIN OF ERROR VALUE: 11,034,123 CONFIDENCE INTERVAL VALUES (5): STATE LOWER LIMIT: 209,648,329 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT) LOCAL TEST VALUE: 221,080,741 (WITHIN CONFIDENCE INTERVAL) STATE UPPER LIMIT: 231,716,575 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT) VALUE ASSIGNED (6): 244,415,257 (SEE ISD SUMMARY WORKSHEET) SOURCES: (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430 (2) NUMBER OF PARCELS SAMPLED BY STAFF (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES
